Launder Pre-Heating Covers

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Heating and Insulated launder covers provide considerable energy savings and are safe to work around. The Rex Materials' heating cover system provides the cast house with a means to accurately pre-heat the launder system to virtually "steady state" condition.

The refractory is preheated to the target metal temperature to assure optimum starting conditions and  temperature drop from the furnace to the casting center.

RMG Launder Pre-Heating Covers

The launder heater design uses a premium wound element embedded in a ceramic fiber PYROLITE® module retained in a steel shell.

The PYROLITE material is extremely buoyant in molten aluminum, eliminating the chance of inclusions in the molten metal.



  • Optimum Energy Release, Rapid Heat & Cool
  • Low Thermal Mass
  • Temperature Uniformity/Increased Element Life
  • Removable Cover
  • Easy Replacement
  • Junction Box On
  • Easy Installation
  • Type "K" Thermocouple Output
  • Temperature Control
  • Woven Ceramic Gasket
  • Minimized Heat Loss

Insulated Launder Cover

Covered launders provide significant energy savings and are safer to work around. Rex Materials' covers are hinged for easy access. They use a PYROLITE ceramic fiber element module retained in a steel shell. PYROLITE is extremely buoyant in molten aluminum.

All cover assemblies are provided with a 2000°F (1090°C) woven ceramic gasket where they rest on the top of the launder. This is to minimize both heat loss and potential cover gas outflow.

Rex Materials supplies a trough heater system that is incorporated into the launder covers. The covers are designed to heat the surface of the refractory to the target metal temperature of 1300°F (700°C) to ensure optimum starting conditions. Rex Materials heaters will, when supplied with the required power input, preheat the refractory to the target temperature within 1 hour.

Optional Equipment Includes:

  • Stainless Steel Housings
  • Gas Distribution Systems
  • Lift-Off Feature
  • Auto-Off Switch
  • Process Control
  • Custom Design

Filter Bowl Pre-Heating System also available.

Rex Materials, Inc.
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